Released: 14 May 2026
Why is RHEL 9.6 not supported for EPAS 18?
- Version pivot: Due to OpenSSL and LLVM breakages introduced in RHEL 9.7, our current minor releases for back-branches for version 17 and earlier were built on RHEL 9.6 to maintain stability for existing users.
- EPAS 18 requirement: Moving forward, EPAS 18 is specifically designed for RHEL 9.7 and later versions. It relies on the newer toolset available in 9.7, which is incompatible with the 9.6 environment.
EDB Postgres Advanced Server 18.4.0 includes the following enhancements and bug fixes:
| Type | Description | Addresses |
|---|---|---|
| Upstream merge | Merged with community PostgreSQL 18.4. See the PostgreSQL 18.4 release notes for more information. | |
| Security fix | This release includes the following upstream security fixes from PostgreSQL: CVE-2026-6472, CVE-2026-6473, CVE-2026-6474, CVE-2026-6475, CVE-2026-6476, CVE-2026-6477, CVE-2026-6478, CVE-2026-6479, CVE-2026-6575, CVE-2026-6637, and CVE-2026-6638. | |
| Bug fix | ECPG: Fixed an issue where VARCHAR values returned through Pro*C-compatible Dynamic SQL Method 4 were missing their trailing spaces. Fetched data is now returned with its original formatting intact. | #58736 |
| Bug fix | ECPG: Fixed an issue where PREPARE ... FROM <statement> failed at runtime due to the SQL text being incorrectly double-quoted by the preprocessor. | #59212 |
| Bug fix | Fixed a server crash that could occur when a deferred trigger fired after a COMMIT was executed inside an SPL EXCEPTION block. | |
| Bug fix | EDB*Loader: Prevented direct path loading when TDE is active to ensure data encryption. | #91277 |
| Bug fix | Fixed an error in pg_stat_statements when querying the view for wrapped queries, caused by a mismatch between the stored query text and its recorded length. | #57634 |
| Bug fix | Fixed non-deterministic behavior in the DBMS_XMLDOM package caused by an uninitialized internal flag on newly created document root nodes. |